Trying to seriously answer the question, I can't really remember being present for anything historic. I saw Bills strike out 13 in 2008, which now seems like a big deal. And then this season, I was present for both the balk-off and Matty's first career walk-off homer.

First career ____ is probably pretty common. I went to a random Angel game in 2002 that happened to feature Chone Figgins' first career AB.

Either that, or we're playing against The Doctor. I wonder if he'll be allowed to use the same version nine times, or if he'll have to use a different Doctor at each position? Can we get a space-time ruling?